221101002222321 has 16 divisors (see below), whose sum is σ = 318608178416640. Its totient is φ = 135577948248960.

The previous prime is 221101002222319. The next prime is 221101002222343. The reversal of 221101002222321 is 123222200101122.

221101002222321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 221101002222321 - 2¹ = 221101002222319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221101002221321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10087634001 + ... + 10087655918.

It is an arithmetic number, because the mean of its divisors is an integer number (19913011151040).

Almost surely, 2^{221101002222321} is an apocalyptic number.

It is an amenable number.

221101002222321 is a deficient number, since it is larger than the sum of its proper divisors (97507176194319).

221101002222321 is a wasteful number, since it uses less digits than its factorization.

221101002222321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20175290216.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 221101002222321 its reverse (123222200101122), we get a palindrome (344323202323443).

The spelling of 221101002222321 in words is "two hundred twenty-one trillion, one hundred one billion, two million, two hundred twenty-two thousand, three hundred twenty-one".